Scarlet Tech Ltd.

- Model WS - Bluetooth Wind Sensor



Scarlet WS wind smart meter turns your smartphone into a high-tech meteorological tool. Takes accurate wind readings, at wind speeds from 0.6 – 40 m/s, with a precision of +/- 3%. The design is inspired by professional cup anemometers and suitable for professional use. Every unit has been through wind tunnel calibration to ensure precision.

  • Wireless Bluetooth 4.0
  • Every 2-second Data Sampling Rate
  • Wind Speed & Direction Models Available
  • Support Android, iOS System
  • IP-67, Tough and durable sensor
  • Outdoor activities, Personal Recreation
  • Up to 40 meters Transmission Distance
  • Free iOS and Android Apps


Wireless Bluetooth 4.0 technology connects wind sensor with smart phones and tablets.

Free App

Free customized mobile Apps based on clients’ applications.

Long Battery Life

4-year battery life of wind speed sensor in all weather conditions.


We develop a a vane that aligns itself with the wind so you can measure wind direction separately. The wind direction sensor can range 0 to 359 degree without blank sector. The contactless magnetic measuring principle gives you precisely reading of direction. Accuracy tolerance: +/- 2.5 degree. The battery life lasts up to 3 years.


We use innovative low-power consumption wirless technology on wind speed sensors. The battery power consumption is only 20-30 uA in normal condition and 35 mA peak current during data transmission. 3.6V Lithium battery with 2400 mAh capacity can run the sensor for 4 years.

4-year long battery life reduces the maintenance cost significantly. Low battery indicatior on the display monitor will show up when battery capacity is lowered than 10%.


  • Refresh every 2 seconds
  • Displays graphs on mobile application.


  • Range up to 100m
  • Sensors mount on a pipe with 20 mm diameter

Outstanding Features

  • Wind tunnel calibrated sensors with precision
  • Stainless steel ball bearing and replaceable cups

  • Customized mobile Apps based on clients' applications including offshore, construction and other industrial fields
  • Available on both iOS (iphone 4s or newer) and Android (4.3 or newer)
  • Real time speed and temperature graph
  • Unit of measure can be chosen (m/s, km/h, knots, mph, Bft)
  • Live map, showing measurements from other users
  • History tab, accessible across all your devices
  • Graphical and sound alarms
  • subjective ambient temperature dependent on wind speed
  • sound alarm at exceeded wind speed

Item: Description

  • Wind Speed Measurement Range: 0.6...50 m/s
  • Wind Speed Accuracy: +/- 3 %
  • Wind Speed Resolution: 0.1 m/s
  • Units of Measurement: m/s, km/h, knots, mph, Bf
  • Dimensions - Sensor: height 210 mm; diameter cup to cup 120 mm
  • Data transmission: every 2 seconds
  • Bearings: 2 x precision stainless steel ball bearing
  • Transmission frequency: Bluetooth 4.0 (Android 4.3 or newer; iPhone 4s, 5, 5s, 6)
  • Battery - sensor: 1 x 3.6 V AA Lithium battery
  • Mounting: the sensor mounts on a pipe with ø 20 mm diameter

  • Agriculture
  • Construction
  • Marine
  • Chemical Plant
  • Office Tower
  • Offshore

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